[vsnet-grb 154831] Fermi-LAT_Ground Notice type is added to GCN
Bacodine
vxw at capella2.gsfc.nasa.gov
Wed Aug 3 06:34:43 JST 2011
TO: All GCN Notice recipients
RE: Fermi-LAT_Ground Notice type is available
DT: 02 Aug 11
INTRODUCTION:
The GCN system has been modified to incorporate the distribution
of the Fermi-LAT "ground-processed" position notices.
Unlike the real-time Fermi-LAT notices (Update) that are generated on-board,
this notice type is the result of automated ground processing.
This automated processing (a) refines the position for on-board triggered events,
and (b) scans the total stream of LAT events applying trigger criteria
looking for bursts that did not trigger on-board.
All the processing to derive the position is automated;
there is no human involvement at this stage.
These will occur about less than 5 times per year.
The time delays for the LAT_GND are in the 6-24 hours range
(due to full data-set telemetry downlink delays).
The location uncertainties are in the 10-60 arcmin range.
This new notice type is available in all the formats and
distribution methods: socket-based (binary & XML VOEvent)
and email-based (full-format, the 4 shorter formats for cellphones
and pagers, and the XML VOEvent format). All the filtering methods
are applicable to this notice type.
ACTION ITEM:
If, after reviewing the information below, you want to receive
these Fermi-LAT_GND Position notices, please send me a request
to have them enabled. You can do this by forwarding this email to
scott at milkyway.gsfc.nasa.gov .
Or you can go to http://gcn.gsfc.nasa.gov/gcn/config_builder.html
and select "#2 Modify an existing config".
You can also take this opportunity to make other changes to your config.
ARCHIVE STORAGE:
The GCN/FERMI Notices are archived within the GCN website
in the Table of FERMI GRBs: http://gcn.gsfc.nasa.gov/gcn/fermi_grbs.html
This archives both the GBM Notice types and the LAT notice types.
MORE INFORMATION:
Can be found at: http://gcn.gsfc.nasa.gov/gcn/fermi.html
NOTICE EXAMPLE:
Here is an example of a full-format email LAT_GND Position Notice:
TITLE: GCN/FERMI NOTICE
NOTICE_DATE: Mon 19 Oct 09 14:16:48 UT
NOTICE_TYPE: Fermi-LAT Ground Position
TRIGGER_NUM: 276237346
GRB_RA: 250.760d {+16h 43m 02s} (J2000),
250.844d {+16h 43m 23s} (current),
250.327d {+16h 41m 18s} (1950)
GRB_DEC: +38.230d {+38d 13' 48"} (J2000),
+38.212d {+38d 12' 43"} (current),
+38.323d {+38d 19' 21"} (1950)
GRB_ERROR: 40.00 [arcmin radius, statistical only]
GRB_INTEN2: 10.3 [cnts] (0.1-1 GeV)
GRB_INTEN3: 0.2 [cnts] ( 1-10 GeV)
GRB_INTEN4: 0.0 [cnts] (10-up GeV)
GRB_DATE: 15107 TJD; 276 DOY; 09/10/03
GRB_TIME: 16543.00 SOD {04:35:43.00} UT
GRB_PHI: -95.16 [deg]
GRB_THETA: 13.86 [deg]
SIGNIFICANCE: 5.90 [sqrt(TS) 2 dof]
SUN_POSTN: 204.42d {+13h 37m 40s} -10.16d {-10d 09' 35"}
SUN_DIST: 64.91 [deg] Sun_angle= -3.1 [hr] (East of Sun)
MOON_POSTN: 219.36d {+14h 37m 26s} -20.34d {-20d 20' 16"}
MOON_DIST: 65.59 [deg]
MOON_ILLUM: 2 [%]
GAL_COORDS: 61.37, 40.82 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 239.20, 59.63 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS: Fermi LAT Ground-Analysis position.
COMMENTS: This Notice was ground-generated -- not flight-generated.
The socket packets contents can be found at:
http://gcn.gsfc.nasa.gov/gcn/sock_pkt_def_doc.html
REMINDER OF RECENT ADDITIONS TO GCN:
In case you have missed them, here is a brief list of the most recent
additions to the GCN system. You might consider signing up
for these Notice types as well. The full anouncements/dscriptions
for each of these can be found at: http://gcn.gsfc.nasa.gov/gcn/whats_new.html
MOA (01 Aug 2011) // Micro-lensing events from the MOA project
DOW_TOD (13 Jun 2011) // Preprogrammed notices at specific days-of-week & time-of-day
FERMI_GBM FIN_POS (07 Jun 2011) // Human-in-the-loop ground-based analysis
MAXI_UNKNOWN/_KNOWN (Apr 2011) // Unknown transients & Flares-ups from Known sources
INTEGRAL_WEAK (Feb 2011) // Subthreshold detections by INTEGRAL
SWIFT_BAT_MONITOR (Feb 2010) // Flare-ups from known sources monitored by Swift-BAT
Sincerely,
Scott
Scott Barthelmy NASA-GSFC, Code 661, Greenbelt, MD 20771
PHONE: 301-286-3106 (office) CELL: 301-346-3733
EMAIL: scott at lheamail.gsfc.nasa.gov
PAGER: 3013463733 at cingularme.com
WEB: http://gcn.gsfc.nasa.gov/gcn
//////////////////////////////// Your Current Configuration /////////////////////////
BEGIN_SITE
SITE_NAME VSNET
DATES 25jun05 23oct07
SITE_LON_LAT 135.75 35.00
DIST_METHOD EMAIL
DIST_ADDRESS vsnet-grb at ooruri.kusastro.kyoto-u.ac.jp
POC_NAME Daisaku Nogami
POC_ADDRESS vsnet-grb at ooruri.kusastro.kyoto-u.ac.jp
DAILY_REPORT_ENABLE 0
DAILY_REPORT_ADDRESS vsnet-grb at ooruri.kusastro.kyoto-u.ac.jp
# Site-specific items:
TRIGGER_ID 0
INTENSITY -1.0
ERROR 360.1000
DELAY 999.9
SIGNIFICANCE 0.00
CONF_LEVEL 0.00
OBSERVABILITY ALL
ATTACHMENT NONE
SIMBAD_NED 0
# Type-specific items:
IPN_POS
INTEGRAL_SPIACS
INTEGRAL_WAKEUP
INTEGRAL_REFINED
INTEGRAL_OFFLINE
KONUS_LC
SWIFT_BAT_GRB_ALERT
SWIFT_BAT_GRB_POS trig_id=0
SWIFT_BAT_GRB_NACK_POS
SWIFT_BAT_GRB_LC trig_id=0
SWIFT_FOM_2OBS trig_id=0
SWIFT_SC_2SLEW trig_id=0
SWIFT_XRT_POS
SWIFT_XRT_NACK_POS
SWIFT_XRT_IMAGE
SWIFT_XRT_PROC_IMAGE
SWIFT_UVOT_POS inten=99.00
SWIFT_UVOT_IMAGE
SWIFT_UVOT_PROC_IMAGE
SWIFT_UVOT_SRCLIST
SWIFT_UVOT_PROC_SRCLIST
SWIFT_POINTDIR
SWIFT_TOO_FOM
SWIFT_TOO_SLEW
END_SITE
More information about the vsnet-grb
mailing list